Improvement in grain-binders



UNITED STATES PATENT OFFICE SYLVANUS D. LOGKE, OF JANESVILLE, WISCONSIN.

livn'aovswlENT IN GRAIN-BINDERS.

Specification forming-l part of Letters Patent No. 97,533, dated December 7, 1869.

CASE C.

To all 'whom it may concern Be it known that I, SYLVANUS D. LocKE, of Janesville, in thc county of Rock and State ot' Wisconsin, have linvented certain new and useful Improvements in Grain-Binders; and I do hereby declare that the following isa full, clear, and exact description thereof', reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a side view. Fig. 2 is also a side view, showing another mode of applying t-he spring. Fig. 3' is a top View. Fig. 4 is a side view of the cam-arm, opposite' to that shown inFig. 1; and Fig. 5 is a side view, showing another mode ot' applying the spring.

The nature of vmy invention relates to comy pressing devices of graixnbinders; and consists in the use of the devices hereinafter more particularly described.

:To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

In the drawings, A represents the cam-arm, having a cam-groove, h, ot' any form requisite to produce the desired movement ofthe compressing-arm D. ln this cam-groove It plays the wrist-pine ofthe crank G, that is secured to the shaft a of the grain-binden Thefcamarm A is pivoted upona short pin or shaft, b, and works in connection with a second or spring arm, B, Figs. l, 3, and 4,1that has upon its upper end asegmental gear, k, that plays 'in a segmental pinion, C, to which the compressing-arm is attached. The second"` or spring arm B is also pivoted upon the pin or shaft b, and is joined to the cam-arm A by a spring, d. The segmental'liinion C and -eompressing-arm D are pivoted 'upon a short pin or shaft, c.

The shafts a, b, and c may be (one or all of them) therequisite shafts of a grain-binder, and may be secured to any suitable support or framework.

E is the grain-guard, against which the lbundie is compressed, and F is the bindingplatform, both of which may be ot' any form or material desired.

On the arms A B are the stop-lugs lz. i', respectively, Figs. 3 and 4, that are used to prevent the arms from separating, or to keep them in the position shown in the drawings.

In Figr?. the segmental gear k, segment-al pinion C, and shaft c are dispensed with, the compressingarm D being, instead of the segmental gear k, attached directly to the arm B.

In Fig. 5 is shown 'still another mode of applying the spring d, so as to allow the rigid non-elastic movement of the cam-arm A to produce a yielding or'elastio movement of the compressing-arm. By this method the segmental gear k is attached directly to` the camarm A, and the segmentalv pinion C is attached to the arm B, that plays on the shaft c, and is joined' to the compressing-arm D by the spring d and stopping-lugs, precisely as it is joined to the cam-arm in Fig. l.'

The opera-tion of my invention is apparent from an inspection ot1 the drawings, as the movement of thecrank. G., alternately raises the arm D, to allow` the unbound gra-in to be brought in upon the platform F, and vthen forces it down and around the bundle, thereby compressing it against the graingnard E with the full foroeof the spring d. 'It' the bundle is large the spring dallows the arm Dato take the position shown by the dotted arm f in Fig. 1, thereby enabling it to adjust itself to the sizeof the bundle.

It will `be seenthatlby myinvention the ro- ,tary movementoft'h'e driving mechanism of a reaperor grain-binder may be made tovpro duce thereq'uisite. intermittent reci proeatin g movement''ot'` A,the compressing-arm of agr'ain- 'binder in a' simpleand positive manner, with but slight costaud less loss of-power. What'lelaim is-a v y .1. The combination of thevcam-arm A with `the lspring d and spring-arm B, substantially as vde scribech 1 y 2.-The combination vof the cam-arm A, spring d, spring-,arm B, and segmental gears k'and Q,*for the purpose'otvproducing a yielding or elastic, and at the same time a reciprocating, movementv of. va compressing-arm of a grainbinder, substantially' as described.

SYLVANUS D. LOGKE.

Witnesses z' I S. A..SKINNER, J. L. LAMBERT. 

